package cli import ( "errors" "flag" "io/ioutil" "testing" ) func TestCommandFlagParsing(t *testing.T) { cases := []struct { testArgs []string skipFlagParsing bool expectedErr error }{ {[]string{"blah", "blah", "-break"}, false, errors.New("flag provided but not defined: -break")}, // Test normal "not ignoring flags" flow {[]string{"blah", "blah"}, true, nil}, // Test SkipFlagParsing without any args that look like flags {[]string{"blah", "-break"}, true, nil}, // Test SkipFlagParsing with random flag arg {[]string{"blah", "-help"}, true, nil}, // Test SkipFlagParsing with "special" help flag arg } for _, c := range cases { app := NewApp() app.Writer = ioutil.Discard set := flag.NewFlagSet("test", 0) set.Parse(c.testArgs) context := NewContext(app, set, nil) command := Command{ Name: "test-cmd", Aliases: []string{"tc"}, Usage: "this is for testing", Description: "testing", Action: func(_ *Context) {}, } command.SkipFlagParsing = c.skipFlagParsing err := command.Run(context) expect(t, err, c.expectedErr) expect(t, []string(context.Args()), c.testArgs) } }